FIGURE 1.
Phagocytosis and chemotaxis of hemocytes (granulocytes) from Marsupenaeus japonicus. (A) Granulocyte phagocytizing yeasts. Yeast is indicated by the arrow. A Giemsa-stained sample is shown after 2 h incubation with heat-killed yeast on the glass. Scale bar: 10 μm. (B) A migrated granulocyte. Chemoattractant was placed on the bottom compartment, and granulocytes were added to the upper compartment and incubated for 4 h at 24°C in the Boyden chamber with PVP membrane. The membrane was fixed with 20% formalin and stained with Giemsa solution. A migrated granulocyte is indicated by a black arrow (lower surface of the membrane), and a pre-migrated granulocyte is indicated by a white arrow (upper surface of the membrane). Scale bar: 5 μm, pore size: 5 μm.